/Engine/Source/Runtime/Engine/Classes/Engine/World.h
Query function return true if already done and returning valid result - can be hit or no hit return false if either expired or not yet evaluated or invalid Use IsTraceHandleValid to find out if valid and to be evaluated
bool QueryOverlapData ( const [FTraceHandle](API\Runtime\Engine\FTraceHandle) & Handle, [FOverlapDatum](API\Runtime\Engine\FOverlapDatum) & OutData )